[petsc-users] MatShell & PCShell

[Klaij, Christiaan]

Hi,

For my linear problem Ax=b I have available the vector b, the action Ax of the matrix and the action Px of a given preconditioner. Is this enough to use the Krylov solvers in PETSc? So far I've looked at ex14f and ex15f which use either MatShell or PCShell but not both. I'm not sure whether it's at all possible, so I would greatly appreciate your advice before starting some trial and error.

Regards,
Chris


dr. ir.ChristiaanKlaij
CFD Researcher
Research & Development
E mailto:C.Klaij at marin.nl
T +31 317 49 33 44M

MARIN
2, Haagsteeg, P.O. Box 28, 6700 AA Wageningen, The Netherlands
T +31 317 49 39 11, F +31 317 49 32 45, I www.marin.nl



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